/*
 * Copyright (C) 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.hit;

public class StackFrame {
    public static final int NO_LINE_NUMBER          =   0;
    public static final int UNKNOWN_LOCATION        =   -1;
    public static final int COMPILED_METHOD         =   -2;
    public static final int NATIVE_METHOD           =   -3;
    
    long mId;
    String mMethodName;
    String mSignature;
    String mFilename;
    int mSerialNumber;
    int mLineNumber;

    public StackFrame(long id, String method, String sig, String file, 
            int serial, int line) {
        mId = id;
        mMethodName = method;
        mSignature = sig;
        mFilename = file;
        mSerialNumber = serial;
        mLineNumber = line;
    }

    private final String lineNumberString() {
        switch (mLineNumber) {
            case NO_LINE_NUMBER:    return "No line number";
            case UNKNOWN_LOCATION:  return "Unknown line number";
            case COMPILED_METHOD:   return "Compiled method";
            case NATIVE_METHOD:     return "Native method";
            
            default:                return String.valueOf(mLineNumber);
        }
    }

    public final String toString() {
        return mMethodName 
            + mSignature.replace('/', '.') 
            + " - " 
            + mFilename + ":" 
            + lineNumberString();
    }
}
